As an industry-leading supplier of cold drawn seamless and DOM-ERW carbon and alloy steel tubing known for its reliability, durability, and exceptional quality,
Ningbo Danyal Pipelines Co., LTD Specializes in sourcing irregular, hard to manufacture shapes and sizes
the type of tubing that demands high-quality craftsmanship and creative engineering and ingenuity to produce. Through our extensive network of carefully custom tubing requirements.
In addition to standard and specialty shapes such as hexagon/round cloverleaf, streamline, and lemon, we have the capacity to provide non-standard tubing with unusual, intricate, and complex profiles, sized to meet your particular/proprietary design specifications. Our extensive unique requirement as well as ASTM, DIN, EN, SAE, and other relevant industry standard. Our decades of experience and deep knowledge of modern tube forming processes provide you with the best opportunity to receive the finest tubing available for your most challenging application
Specialty Shape Tubing Capabilities:
| Production Process | Drawn Over Mandrel (DOM) |
| Tube Specifications / Standards | ASTM A513 Type 5 DIN 2391
ASTM A519 DIN 2393 ASTM A513 Type 6 EN 10305-1 ASTM A213 Pressure Tubing EN 10305-2 SAE J525 Hydraulic Tubing JIS G 3445 SAE J524 Hydraulic Tubing Type 5, 11, 22 &others ASTM A214 Pressure Tubing And many more Industry Standards |
| Steel Grades & Alloys | 1010 4130
1020 4140H 1026 Additional Alloys Available |
| Shapes | Round Cloverleaf
Oval Streamline Square Lemon Rectangular Custom made shapes to order Hexagonal |
| Value Added Services | Precision Cutting to Length Chamfering
Tolerance as Close as ± 0.004” (depending Custom Made Shapes On Size) |
Additional Information:
| Industry Focus | Aviation Furniture
Automotive and all Related Industries Unlimited Exercise Equipment |